NHTSA ID Number: 10043899
Manufacturer Communication Number: TJ-26091
TSB/Document Date: 2012-05-01
Summary
VOLVO
: HESITATION UPON ACCELERATION. *KB
SB-10043899-8880
Title
Hesitation upon acceleration
Ref No
US26091.1.0 en-US
Issuer
Status
Released
2012Status Date
03-29
2012Issue Date
03-27
VIDA,
Reference VSTG, TJ
24516
-
Partner
3 US 7510 Volvo Cars North America
Func Group 2800
Func Desc ignition and control system
Attachment
Vehicle Type
Eng
Type Eng
Sales Body Gear Steer Model Year
Desc
124 95
B6324S5
2011-9999
Plant Chassis range
21
Struc Week
Range
0134001-0999999 201020-201216
136
95
B6324S5
2011-9999
21
0094001-0999999 201020-201216
156
95
B6324S5
2011-9999
22
0135000-0999999 201020-201216
275
95
B6324S5
2011-9999
21
0568001-0999999 201020-201216
CSC
Customer Symptom Codes
Code Description
Driving/Poor performance/lacks power/At take
1Q
off
AJ
Driving/Poor performance/lacks power
AL
Driving/Hesitates/surges/During acceleration
DTC
Diagnostic Trouble Codes
Text
Note! If using a printed copy of this Technical Journal, first check for the latest online version.
DESCRIPTION:
A hesitation upon acceleration may be felt by the customer, especially with fuel with a low octane rating. Hot
ambient temperature and / or high altitude may make the situation worse. The root cause has been found to
be knock limitation (ignition retardation due to knock). This applies to vehicles with engine 95 only.
PRODUCT MODIFICATION:
New Engine Control Module (ECM) Software (SW) will be introduced into production during structure week
2012w16.
SERVICE:
New ECM SW is now available as a service fix.
With a confirmed hesitation comlaint, perform an ECM Upgrade according to VIDA. If there are any other
symptoms, for example Bank 2 misfires and/or knocking noises coming from the oil pan, please also refer to
TJ 24516.
VOLVO STANDARD TIMES GUIDE (VSTG) INFO:
Operation number 36004-2 - Software ECM module upgrade - See VSTG
- Claims may be submitted under the new car warranty when there is a documented customer complaint
using claim type: 01
- Labor times are valid at the time of release and are subject to change.
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TSB/Document ID: TJ-26091
Replacement Service Bulletin Number:
MFR Communication Date: 2012-03-27
MFR Internal Campaign ID/Software Version:
Communication Type: Service Bulletin/Repair Instructions
NHTSA Components: POWER TRAIN:AUTOMATIC TRANSMISSION
MFR Component System:
MFR Component Subsystem:
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